As of December 2017 this segment represents ~17% of the mobile browsers and ~8% of all browsers (across all device types). This segment is typically a lot larger in developing countries like India and Africa.
The mobile segment is defined by the following criteria:
- Screen less than 3.5 inches or 320px
- Primary input method is trackball/joystick/T9 keyboard
- Browser supports the mobile segment requirements
The mobile segment supports the following features:
- Basic CSS
To develop successfully for this segment you have to keep it simple. Don't use animations or advanced styling. Keep DOM manipulations to an absolute minumum.